Re: kern/38100: Kernel panic while unmounting automounted NFS filesystem

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

The following reply was made to PR kern/38100; it has been noted by GNATS.

From: Matthias Scheler <tron%zhadum.org.uk@localhost>
To: NetBSD GNATS <gnats-bugs%NetBSD.org@localhost>
Cc: 
Subject: Re: kern/38100: Kernel panic while unmounting automounted NFS 
filesystem
Date: Sat, 24 May 2008 13:29:46 +0100

 The crash seems to be related to mount option "xlatecookie" mount option
 in the automounter map.s
 
 If I manually mount a filesystem with "mount_nfs -X ..." I get the same
 panic on unmount:
 
 root@sheridan:~#mount_nfs -X 81.187.181.119:/export/scratch /tmp/bla
 root@sheridan:~#umount /tmp/bla
 panic: kernel diagnostic assertion "np->n_dirgens == NULL" failed: file 
"/src/NetBSD-current/src/sys/nfs/nfs_node.c", line 319
 Stopped in pid 415.1 (umount) at        netbsd:cpu_Debugger+0x4:        nop
 db{1}> 
 
        Kind regards
 
 -- 
 Matthias Scheler                                  http://zhadum.org.uk/